CN106061799A - Airbag inflator pad - Google Patents
Airbag inflator pad Download PDFInfo
- Publication number
- CN106061799A CN106061799A CN201580007174.3A CN201580007174A CN106061799A CN 106061799 A CN106061799 A CN 106061799A CN 201580007174 A CN201580007174 A CN 201580007174A CN 106061799 A CN106061799 A CN 106061799A
- Authority
- CN
- China
- Prior art keywords
- gas generator
- gas
- liner
- weight
- aerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
- B60R2021/2648—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder comprising a plurality of combustion chambers or sub-chambers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
A gas generator 10 contains an anti -vibration, auto-igniting pad 33. The pad 33 is formed from a mixture of a known auto-igniting composition mixed with an elastomeric polymer, and then cured, thereby forming a polymer-auto-igniting composition matrix. The pad 33 is placed in thermodynamic communication with a housing 1 la on the gas generator 10, thereby enhancing the safety of the gas generator 10 while yet providing a multi-functional pad 33. The pad 33 is formulated to reduce vibrations when biased against an associated gas generant 38c, while augmenting the amount of gas produced upon gas generator activation, while yet providing an auto- igniting material that is ignited during a high heat event.
Description
Cross reference to related applications
This application claims the rights and interests of No. 61/942,195 U. S. application submitted on February 20th, 2014.The application is
The 12/286th, No. 430 U. S. application that JIUYUE in 2008 is submitted on the 29th own the part continuation application with CO-PENDING together,
This U. S. application is the part continuation application of the 11/395th, No. 477 that on March 30th, 2006 submits to, and claimed.
Technical field
The present invention relates generally to the pyrotechnic gas generator for inflated type restraint device, and more precisely, relates to tool
Having this type of gas generator of propellant cushion pad, described propellant cushion pad is used for facing to propellant bed biasing resistance, in case
Only propellant grain therein and/or fritter rupture.Automatically spark ignition type anti-vibration pad can be arranged on the aerator interior that is associated
End, thus reduce the vibration of performance that may suppress associated gases propellant.Additionally, automatically light liner by with
The component the increase of the temperature on the outside of aerator and automatically light is made.
Background technology
Inflatable restraint system or " air bag " system have become the standard feature in many new vehicles.These systems are to automobile
Make significant contribution safely, but, as adding any standard feature, they increase costs of most vehicles, manufacture again
Polygamy and weight.Therefore, the technological progress solving these problems is welcome by the sector.Specifically, many occupants are about
The gas generator used in beam system or aerator are often the most complicated the heaviest parts.Therefore, best-of-breed functionality is being retained
Simplify the design of airbag inflator simultaneously and manufacture the target of always automobile engineer.
Typical aerator is constructed having elongated metal body.Owing to a lot of aerators use pyrotechnic gas generant
Compound is that the air bag being associated produces charge air conditioning, and therefore, aerator structure must consolidate, thus correspondingly makes this type of fill
Gas device is heavy.Increased popularity and available aerator type use the multiple gas-forming agent optionally activated charging.?
In this type of system, the multiple propellant beds being arranged in aerator main body can be lighted or successively-ignited simultaneously.If it occur that collision,
So some vehicle and occupant's parameter is provable lights two propellant beds.Other situations can be by only lighting in propellant charges
One or light charging in order and solved best, have delay between two of which event.In order to avoid lighting
The period of one charging lights another simultaneously, it is often necessary to separated by combustion chamber fluid.By the burning of pyrotechnics at aerator
The relatively large power of upper generation needs interior divider and other structural elements relative securement of aerator, described interior divider
With structural elements, charging fluid is separated, thus increase the weight of aerator further.
It is developed for building the multi-chamber aerator that firm inside separates.A kind of method relates to inserting separator
In the inside of aerator, subsequently by the curling of aerator main body or rolling formation, in order to keep this separator.It is proved this side
Method is effective, but, under many circumstances, it is necessary to use and will can bear curling and/or heavy type/thicker the filling of rolling formation process
Gas device main body.This type of aerator main body may be the heaviest, and in view of the procedure of processing needed for fixing internal separator, manufactures
Process is relative complex.
Another consideration is the repeatability of the performance of gas generator.Propellant spring or cushion pad are used for preventing propellant from breaking
Broken, thus maintain the propellant surface area of the relative constancy of burning.Additionally, some propellant can be pyrotechnics, wherein humidity
And/or the absorption of water can suppress intended combustion characteristics, and during collision accident, therefore may result in the air bag buffering that is associated
The performance variability of pad.Although can be used for preventing propellant from crushing, but propellant spring or cushion pad adding manufacture complexity
And cost, and increase the weight of whole aerator.
Some gas generating composition or automatically light compositions and include the component containing chlorine, such as, potassium hyperchlorate or chlorine
Acid potassium.These oxidants can discharge chlorine-bearing compound over an extended period of time, and these materials are generally contained within by each compositions
Component be managed, such as, clay or calcium oxide.The problem relevant to use clay or calcium oxide is and does not includes containing metal
The compositions of material is compared, and the relative quantity of the solid that aerator discharges after activating increases.Do not using in correspondent composition
The chlorinated products being present in aerator containing management in the case of metallics will be the progress in this area, thus continue pipe
The relative molar amounts of the gas that every gram of gas-forming agent produces is improved, in order to optimize the property of aerator while reason chlorine-bearing compound
Energy.
The 6th, 779, No. 812 United States Patent (USP) authorizing stone field (Ishida) et al. describes a kind of aerator, and it contains by silicon
The silicone buffer component that rubber and silicon foam are made.Stone Tian Wei can appreciate that and will automatically light compositions and polymer-automatic point
The advantage that silicone in combustion substrate combines.
Authorize WO 97/29151 description pausing (Frampton) in Pulan and be used for the various medicines that the bottle of drug product caps
Thing stopper.Described stopper is made up of the elastomeric material containing desiccant.Pause and do not recognize and will automatically light combination in Pulan
Thing and polymer-automatically light the advantage that the silicone in substrate combines.
Summary of the invention
It is an object of the present invention to provide a kind of gas generator, described gas generator has propellant cushion pad or automatic
Lighting liner, it is not only used as vibroshock when facing to the gas-forming agent biasing being associated but also is used as automatic igniter.
According to the present invention, automatically light anti-vibration pad and automatically light at a temperature of predetermined, and also by providing partially facing to it
Put the movement suppressing propellant fritter or granule.Cushion pad is preferably formed by polymeric matrix, and this polymeric matrix is containing tangible
Become automatically to light/the component of propellant compositions.
According to the present invention, suitable polymer is selected from chain based on silicone, urethanes (such as, polyurethane), rubber
Glue (such as, ethylene propylene diene monomer (EDPM)) and cellulose derivative.Carry secretly in described polymeric matrix described from
Dynamic light propellant contain following at least one: fuel, oxidant, metal-oxide and their mixture.Preferably combustion
Material is selected from tetrazolium and the salt of tetrazolium, such as, 5-Aminotetrazole, the basic salt of tetrazolium and their mixture.Preferably oxidation
Agent is selected from alkali nitrates, alkaline earth nitrate, transition metal nitrate, metal and nonmetal perchlorate, and it
Mixture.Catalyst selected from molybdenum salt and oxide can be provided.Auto-igniting propellant constitutes total polymer/automatic point
Fire propellant substrate or automatically light the about 30-70wt% of liner/cushion pad.Polymer also constitutes total polymer/automatically light
The about 30-70wt% of propellant substrate.Fuel mix lights the 20-30wt% of compositions the most automatically.Oxidant constitutes total automatic
Light the about 60-70wt% of compositions.Catalysts containing molybdenum constitutes the about 0-10wt% always automatically lighting compositions.
Other auto-igniting propellant mixture are also applied for polymeric matrix.This includes mixture, and it contains selected from carboxylic
Acid, reducing sugar and the fuel of their mixture, and oxidant, such as, alkali and alkaline earth metal ions chlorate and high chlorine
Hydrochlorate and their mixture.These fuel can provide according to identical percetage by weight, as mentioned above with oxidant.Equally
Ground, polymeric matrix is the about 30-70wt% always automatically lighting anti-vibration pad, and auto-igniting propellant is always automatically to light
The about 30-70wt% of anti-vibration pad.According to the present invention, this lights anti-vibration pad automatically can form up to 50 weight % when burning
Gas, described weight % by relative to burning before cushion pad or keeper gross weight based on.Therefore, it can regulation described
Liner, in order to adjust or supplement the combustion rate of main propellant.
Accompanying drawing explanation
Fig. 1 is the side view of the aerator of the first exemplary according to the present invention.
Fig. 2 is the side view of the aerator of the second exemplary according to the present invention.
Fig. 3 is that the example gases according to the present invention generates system, the schematic diagram of vehicle occupant protection system.
Detailed description of the invention
With reference to Fig. 1, it is shown that according to example gases generator or the aerator 10 of one embodiment of the invention.Although
Description dual cavity aerator, but according to the invention it is possible to use single-chamber room or other multi-chamber aerators.Aerator 10 is designed
Inflatable restraint system in automobile, supply charge air conditioning is inflated for conventional balloon cushion pad, and this is this
Function known to field.Aerator 10 may utilize two the propellant dresses lighted in separate combustion chamber as herein described
Material, and discharge charge air conditioning via common set air chamber 21.Exemplary aerator 10 further provides for independently operable opening
Dynamic device, for lighting corresponding propellant charges, so that the available action scheme of aerator produces significant change.Example
As, sequentially and continuously lighting of two chargings is all possible to, and is specifically dependent upon the optimal deployment of the air bag that is associated.Expection will
Find that aerator 10 is best suitable for for side gas-bag for passenger system, but, without departing from the scope of the invention, other should
With being possible.All parts of the present invention are all to be formed by the known materials being readily available commercially, and the already known processes system of employing
Become.
Aerator 10 includes elongate pressure container or aerator main body 11, the most hollow steel cylinder.Aerator main body 11 is with
One end 15 and the second end 17 are characterized, and define multiple inflation aperture 40, and described inflation aperture allows outside aerator main body
Fluid communication between portion and collection chamber 21.First end cap 13 is positioned at the first end 15 of aerator main body 11, preferably with described
Aerator main body forms fluid-tight.Second end cap 34 is preferably placed at the second end 17, it is also preferred that formed with aerator main body 11
Fluid-tight.Capping 13 and 34 preferably metal.But, they can be made up of another suitable material, such as, and plastics, pottery
Porcelain or composite.First end 15 and the second preferred inward curl of end 17, in order to by solid to the first capping 13 and the second capping 34
Hold in place, but, some other suitable methods can be used, such as, in aerator main body 11 and corresponding capping
Welding or matching thread.Additionally, rubber o-ring can be buckled in capping 13 and 34 around, thus formed or strengthen and fill
The sealing of gas device main body 11.
Aerator 10 includes the first combustion chamber 25, is placed with some gas generant material or the first propellant charges in it
28.In a preferred embodiment, chamber 25 includes the pith of the inside of aerator main body 11, and its part is by aerator
Longitudinal wall of main body 11 defines and part is defined by the first end cap 13.Collection chamber 21 is so as to charge air conditioning is sent to aperture
The region of the aerator main body 11 of 40.Therefore, chamber 25 and collection chamber 21 are the most co-extensive.In other words, collection chamber 21 can
To be loosely defined as occupying the part of the chamber 25 of the zone line of the inside of aerator main body 11.Phrase is " at least partly same
Prolong " it is understood to include wherein the design that chamber 25 is segmented by paper tinsel, explosion shim liner etc. as described herein, and its lumen
The design that room 25 is not interrupted by this category feature.First end cap 13 preferably includes cylindrical portion 16, wherein placed perforated disc
18, thus chamber 25 is separated into Liang Ge sub-chamber 25a and 25b.Preferably include the trigger group of conventional igniters or ignitron
Part 12 is positioned at the first end 15, and is preferably mounted in the first end cap 13, so that it can light the group in chamber 25
Compound.It is also preferred that include that the second actuator assembly 9 of conventional igniters or ignitron is positioned at the second end 17.
Propellant charges 28 can be any suitable gas generant composition known in the art, preferably comprises mutually steady
Determine the non-nitrine compositions of ammonium nitrate.As it is known in the art, other gas generating compositions of being contained within of gas generator or from
Dynamic light compositions and can include the oxidant containing perchlorate and chlorate.No. 5,872,329, No. 5,756,929
With the 5th, 386, No. 775 United States Patent (USP) describes exemplary but nonrestrictive formula, and be herein incorporated by reference this
Wen Zhong.In a preferred embodiment, propellant charges 28 uses the form of fritter 28a and thin slice 28b to provide, and both of which exists
Shown in Fig. 1.Fritter 28a and thin slice 28b can be different compositions, but the most identical material uses and different is purchased shape
Formula.In a preferred embodiment, fritter 28a is separated by holding dish 32 with thin slice 28b.Dish 32 can be by relatively porous material
Material is made, so that the flame front lighted or heat from fritter 28a can light thin slice 28b, or it can be by permitting
The known materials being permitted to be lighted thin slice 28b by the thermal convection current of the burning of fritter 28a is made.Some synergist propellants 14 are preferably put
In sub-chamber 25a, and traditional approach can be used to light via trigger 12, in order to light and strengthen the first propellant charges
The combustion characteristics of 28a and 28b.
According to the present invention, it may be necessary to get rid of and use enhancer composition 14 or 38, but by anti-vibration pad 33a or buffering
Pad is inserted in its position.Therefore, the embodiment of Fig. 1 can be changed containing cushion pad 33a, to replace the increasing of neighbouring capping 34
Effect immunomodulator compounds or compositions 38.It will be appreciated that replace the liner 33a that automatically lights of compositions 38 to provide enhancer composition, and
And also serve as and automatically light compositions.It should be noted that end cap 34 connects with liner 33 in thermodynamics mode.
Further according to the present invention, automatically light and anti-vibration pad or cushion pad 33 are preferably positioned at propellant fritter 28b
And between cap 29 (or pedestal), thus suppress the broken of fritter 28b and keep contacting with the high surface area of cap 29, described cap
Also connect with shell 11 and end cap 34 in thermodynamics mode.It will be appreciated that cushion pad 33 may also placed in aerator 10 any
Place, and in case there is a need, it is possible to provide resilient support.Therefore, the shape of cushion pad 33 is not limited to shown showing
Example structure.
Shape can be carried out by mixing the desired amount of component of automatically lighting in required uncured polymer (such as, silicone)
Become cushion pad 33.Described polymer or silicone just can finally be mixed into substantially uniform mixture, and illustrate according to manufacturer
Solidify.Silicone is readily obtained, and such as, can be provided by companies such as the companies of SHIN-ETSU HANTOTAI (Shin-Etsu) of such as Japan.
It addition, in the alternative method forming liner 33, component of automatically lighting as mentioned below can be initially with
Know that mode uniformly mixes, and be then sprayed onto in uncured elastomer, such as, be sprayed onto in silicone.Described elasticity
Body illustrates to solidify according to manufacturer subsequently.
Partition component 26 is positioned to close to the second end 17, and preferably includes substantially cylindrical base component 27 and cap
29.Base component 27 and cap 29 define the second combustion chamber 35, and this second combustion chamber at least partly encases the propelling of the second amount
Agent 38, described propellant preferably employs the form of fritter and thin slice.Base component 27 and the second end cap 34 can be same parts, as
In a preferred embodiment, or multiple single attachment can be used.In a preferred embodiment, separation group
Part 26 is structurally independent from aerator main body 11 and is formed.Partition component 26 is that the longitudinal side wall with aerator main body 11 does not has thing
The separate piece of reason attachment.During the assembling of aerator 10, partition component 26 is slided into the position in aerator main body 11, and
Second end 17 can inward curl or otherwise formed around partition component 26, in order to be fixed therein by assembly 26.Pass through
Same way, the first end 15 also can inward curl, or otherwise formed around end cap 13, thus close in a similar manner
One end 15.Therefore, it is different from and fixes the second end cap 34, aerator main body 11 is not modified, in order to accommodate or with its other party
Formula fixes the parts defining the second combustion chamber 35.
Cap 29 preferably includes multiple aperture 30, and described aperture can be by the second chamber 35 and collection chamber 21 (and the first chamber
25, because collection chamber 21 and chamber 25 fluidly connect and part is co-extensive) couple together.In a preferred embodiment, will
Paper tinsel or explosion shim liner (not shown) are crossed over aperture 30 and are placed, to block the fluid communication between two chambers.But, Ying Liao
Solving, during paper tinsel or explosion shim liner being placed and/or be manufactured so that the propellant combustion in chamber 25, it will not be inside,
That is, the direction of the second end 17 bursts.On the other hand, the fuel of the propellant in the second chamber 35 can make paper tinsel or shim liner
Outwards explosion, thus allow the combustion products escape in chamber 35 to collection chamber 21/ first chamber 25, and thus from aerator
Main body 11 is discharged.Preferably paper tinsel and shim liner and the described method installing them are all as known in the art.Logical
Cross and the first chamber 25 and the second chamber 35 fluid are separated, can avoid during the propellant combustion in chamber 25 in chamber 35
Propellant light simultaneously, as described herein.The external diameter of base component 27 is preferably substantially equal to the internal diameter of aerator main body 11,
Thus base component 27 is embedded, i.e. relatively closely coordinate.Due to the second end cap 34 and the preferred base of aerator main body 11
This one-tenth is cylindrical, and therefore, both parts is alignd the most in the axial direction.One or more fritters 50 of automatically lighting can be placed on inflation
In device 10, thus allow to light gas generant material when carrying out external heat in a manner known in the art.
In one embodiment, in the stacking during thin slice 28b is placed on collection chamber 21.Similarly, cushion pad 33 is placed
Become neighbouring stacking 28b and make whole stacking 28b bias towards the first end 15.Thin slice 28b the most preferably makes dish 32 face toward fritter 28a
Biasing, thus prevent fritter 28a and/or thin slice 28b from pushing when aerator leaves unused for a long time, and thus slow down fritter 28a and/
Or the potential mechanical degradation of thin slice 28b.
According to application needs, thus it is possible to vary the design of aerator 10 as herein described.While it is true, delaying according to the present invention
Die head or propellant constraint 33 are arranged in the design of any aerator, and bias facing at least one propellant, thus provide
Buffering effect, such as, as metal buffer pad realizes in form.
In typical inflatable restraint system designs, aerator 10 is connected to include the electrical activation system of crash sensor
System, there is many known suitable type in described crash sensor.Set additionally, various sensor-based systems can be incorporated into vehicle electric
In Bei, including seat weight sensor, occupant detecting system etc..During typical deployment scenario, will impact or unexpected vehicle
Slow down, activation signal is sent to aerator 10 from car-mounted computer.Described signal can be sent to be contained in opening in aerator 10
One or two in dynamic device assembly.Owing to chamber 25 preferably comprises bigger main feeding material, therefore, activation signal the most initially refers to
To the actuator assembly being operationally associated with the first chamber 25.In some cases, such as, more occupant or occupant
In the case of leaving the normal seat position in vehicle, it may be necessary to activate two propellant charges simultaneously.Other situations can need
Otherwise same activation scheme.Such as, some situation may need only to light the first propellant charges, or lights two in order
Charging, the time delay between two of which event is variable.Once it is sent to electrical activation signal be associated with the first chamber 25
Trigger, just start the burning of synergist propellant 14, or the combustion automatically lighting anti-vibration pad 33 in sub-chamber 25a
Burn.The flame front from synergist 14 or automatically lighting anti-vibration pad 33 and/or hot combustion gas then across dish 18, thus
The burning of the propellant fritter 28a in startup chamber 25b.The burning of fritter 28a produces charge air conditioning, and described charge air conditioning is rapid
Flow out inflation aperture 40, start and fill the air bag being associated.Cylindrical metal web filter 23 is preferably positioned at aerator main body
In 11, and filter the dregs produced by the burning of compound therein, also serve as the radiator of the temperature reducing charge air conditioning.
The burning of fritter 28a starts the burning of thin slice 28b, and described thin slice is preferably made up of material same or similar with fritter 28a, from
And lasting burning is provided, via collection chamber 21 and aperture 40, the gas supply of relative constancy is sent to the air bag being associated.
When needed, electrical activation signal is sent to trigger, described trigger operationally with containing gas generant composition 38
The second chamber 35 be associated, described gas generant composition is preferably similar to the compositions in chamber 25, or replace or
Combine with the gas-forming agent 38 containing the liner 33 building as described or being formed.Gas in chamber 35 is quick
Formation causes air pressure therein to increase sharply, so that the paper tinsel covering aperture 30 or shim liner (not shown) in cap 29 are the most quick-fried
Split.Gas is discharged from aerator 10 via collection chamber 21 and aperture 40 subsequently.The activation of the gas-forming agent in chamber 35 can
With before, during or after being sent to actuator assembly 12 at activation signal occur, described actuator assembly operationally with
Chamber 25 is associated.
Owing to chamber 25 and 35 discharges charge air conditioning by collection chamber 21, therefore, the present invention provides and is better than wherein by single
Solely collection chamber is for the different operating advantage of many Previous designs of each combustion chamber.Owing to discharging combustion by collection chamber 21
Burn the charge air conditioning in chamber 25 and 35, therefore, with the multiple chamber design that wherein combustion chamber carrys out aerofluxus via independent collection chamber
Compare, the inflation section characteristic being associated in the length and width of air bag can be improved.Fill additionally, use to be structurally independent from
The partition component of gas device main body wall allows at not curled or otherwise structure in the case of change aerator main body itself
Aerator.Additionally, due to aerator 10 uses and first coextensive collection chamber in combustion chamber, therefore, aerator 10 compares
The multi-chamber aerator using the combustion chamber separated with common set air chamber has simpler design.Aerator main body 11 makes
With the interior divider not being attached, and therefore, there is no need to reinforce compensate and separate the reduction that attachment causes and can be carried out
Manufacture.These and other advantages reduce the cost of aerator, manufacture complexity, size and weight.
Referring now to Fig. 2, it is shown that the second exemplary of the aerator of the present invention.As found out in fig. 2, liner 33
Pedestal 39 or cap 41 can be leaned on, thus maximize the liner or the surface of elastic retainers 33 contacted with aerator shell 11a
Area.It will be appreciated that the various components in Fig. 2 are similar to those in Fig. 1, but shell 11a and each chamber are formed as driver
Side aerator (Fig. 2) rather than passenger side aerator (Fig. 1).Refer again to Fig. 2, shell 11a and contain the first end 15a and the second end
17a.In this embodiment, the first lighter or ignitron 37a are fixed in the second end 17a, can with the first combustion chamber 25c
Connect with lighting.First gas generating composition or propellant 28a are stored in the first chamber 25c, for its light and
Gas is generated during burning.It is fixed in the second end 17a by same way, secondary igniter or ignitron 37b, with the second burning
Or synergist chamber 25d can connect with lighting.Second compositions, such as, enhancer composition 28b is stored in the second burning or increasing
In effect agent chamber 25d, for generating combustion product when it burns and lights.3rd combustion chamber 35c is by shell 11a
Portion defines, and is in fluid communication with chamber 25d, and if the most optionally operated, with chamber 25c fluid
Connection.3rd compositions, such as, gas generating composition 38c can be identical or different with propellant 28a, and at aerator
10 light when starting (and more specifically, by starting chamber 25c and/or 25d in a known way).
The operation of the aerator of Fig. 2 is substantially similar in Fig. 1 the aerator illustrated.In order to illustrate the gas according to the present invention
The operation of body generator 11 or 11a and referring to figs. 2 and 3, predetermined signal can be connect by collision accident sensor 210
Receive, thus the algorithm being contained within by control unit, use known way initial igniter 37b.Thus, by synergist (or its
He) compositions 28b lights, in order to burn and produce the pressure of combustion product and rising.The burning that compositions 38c is obtained subsequently
Heat, pressure, flame, gas, and in more general terms, be transferred to the combustion product of chamber 35c from chamber 25c and/or 25d and light
And burn.When gas-forming agent 38c burns, the gas obtained is moved through filter 23 and leaves and be positioned at shell 11a's
Gas-forming agent aperture 43 in cup-shaped portion 41.
Referring now to Fig. 3, above-mentioned exemplary aerator 10 is also incorporated in gas-bag system 200.According to the present invention, schematically
The gas-bag system 200 that ground represents includes at least one air bag (not shown) and aerator 10, and described aerator contains liner 33, with
Impact for buffer gas propellant compositions 12.The air bag (not shown) that aerator 10 is connected in steering wheel, in order to make
Obtaining can be with the internal fluid communication of air bag.Gas-bag system 200 may also comprise collision accident sensor 210 (or in communication).
Collision accident sensor 210 includes known crash sensor algorithm, and such as, if it occur that collision, the most described algorithm is via gas
The activation of capsule aerator 10 signals the startup of gas-bag system 200.
It will be appreciated that gas-bag system 200, and more broadly, vehicle occupant protection system 180 illustrates but is not limited to according to this
The intended gas generating system of invention.This specification is for illustration purposes only, and forms other enforcement also dependent on the present invention
Scheme.Therefore, it is understood by those skilled in the art that, in the case of without departing from the desired extent of the present invention, can be to existing
Various change is carried out in disclosed embodiment.
Claims (20)
1. a gas generator, comprising:
Shell, it has the first end and the second end, and described shell connects with the external heat mechanics of described gas generator；
Gas generating composition, it is contained in described shell, can light when described gas generator activates；And
Elastic insert, it is contained in described shell, and described liner is made up of elastomeric polymer and automatic firing material, described from
The automatic ignition temperature of dynamic ignition-material less than the firing temperature of described gas generating composition, described elastic insert with described outside
Shell thermodynamics connects.
Gas generator the most according to claim 1, wherein said elastic insert can be automatic in the range of 150-210C
Light.
3. a gas generating system, it includes gas generator according to claim 1.
4. a vehicle occupant protection system, it is incorporated to gas generator according to claim 1.
Gas generator the most according to claim 1, wherein said elastic insert is by silicone and described automatic firing material
Formed.
Gas generator the most according to claim 1, wherein said elastic insert include containing fuel and oxidant from
Dynamic ignition-material, described fuel is selected from tetrazolium, the salt of tetrazolium, the basic salt of tetrazolium and their mixture, and described oxygen
Agent selected from alkali nitrates, alkaline earth nitrate, transition metal nitrate, metal and nonmetal perchlorate and it
Mixture.
Gas generator the most according to claim 5, wherein said gas-forming agent keeper farther includes selected from containing
Molybdenum salt and the catalyst of oxide.
Gas generator the most according to claim 1, wherein said elastic insert include containing fuel and oxidant from
Dynamic ignition-material, described fuel is selected from carboxylic acid, sugar and their mixture, and described oxidant is selected from alkali metal nitric acid
Salt, alkali metal perchlorate, alkaline earth nitrate, alkaline earth metal perchlorate and their mixture.
Gas generator the most according to claim 1, wherein provides the described automatic firing material of about 30-70 weight %,
And providing the described elastomeric polymer of about 30-70 weight %, described weight % is the gross weight relative to described elastic insert
For.
Gas generator the most according to claim 1, wherein said automatic firing material includes about 20-30 weight %
Fuel, the oxidant of about 60-70 weight % and the molybdenum trioxide of about 10-20 weight %.
11. gas generator according to claim 1, wherein said elastic insert is inclined facing to described gas generating composition
Put.
12. gas generator according to claim 1, wherein said elastic insert is adjacent to described first end of described shell
Or second end.
13. gas generator according to claim 1, wherein said elastomeric polymer selected from urethanes, silicone,
Rubber, cellulose derivative and their mixture.
14. gas generator according to claim 12, wherein said elastomeric polymer is selected from silicone, polyurethane, ethylene
Propylene diene monomer and their mixture.
15. 1 kinds of gas generator, comprising:
Shell, it is adjacent to the outside of described gas generator；
Gas-forming agent, it is contained in described shell, can light when described gas generator activates；And
Vibrationproof and the liner automatically lighted, it is contained in described shell and thermodynamics connection therewith, and described liner faces toward institute
Stating gas-forming agent biasing, wherein said liner is lighted within the temperature range of about 150C to 210C automatically.
16. gas generator according to claim 15, wherein said liner is formed by elastomeric polymer, and described elasticity is gathered
Compound is mixed with and automatically lights compositions.
17. gas generator according to claim 15, wherein said liner produces when burning and reaches described liner
50 weight %, described weight % is based on the gross weight relative to the described liner before burning.
18. 1 kinds of gas generator, comprising:
Shell, it is adjacent to the outside of described gas generator；
Gas-forming agent, it is contained in described shell, can burn when described gas generator activates；And
Liner that is elastic and that can automatically light, in it is contained in described shell and thermodynamics connection therewith,
The gas that wherein said liner produces when burning reaches 50 weight % of described liner, and described weight % is by burning
The gross weight of front described liner determines.
19. gas generator according to claim 18, wherein said liner contain by fuel and oxidant form from
Dynamic ignition-material, described fuel is selected from tetrazolium and triazole, their derivant and salt and their mixture, and described oxygen
Agent selected from alkali nitrates, alkaline earth nitrate, transition metal nitrate, metal and nonmetal perchlorate and it
Mixture.
20. gas generator according to claim 18, wherein said liner contains elastomeric polymer, described flexible polymer
Thing is selected from urethanes, silicone, rubber, cellulose derivative and their mixture.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461942195P | 2014-02-20 | 2014-02-20 | |
| US61/942,195 | 2014-02-20 | ||
| US14/628,146 | 2015-02-20 | ||
| PCT/US2015/016971 WO2015127317A1 (en) | 2014-02-20 | 2015-02-20 | Airbag inflator pad |
| US14/628,146 US9676366B2 (en) | 2014-02-20 | 2015-02-20 | Autoigniting, antivirbration airbag inflator pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106061799A true CN106061799A (en) | 2016-10-26 |
| CN106061799B CN106061799B (en) | 2020-03-03 |
Family
ID=53797393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580007174.3A Active CN106061799B (en) | 2014-02-20 | 2015-02-20 | Airbag inflator pad |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US9676366B2 (en) |
| JP (1) | JP2017506192A (en) |
| CN (1) | CN106061799B (en) |
| DE (1) | DE112015000911T5 (en) |
| WO (1) | WO2015127317A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554477A (en) * | 2017-10-26 | 2018-01-09 | 东北师范大学 | Safe automobile air bag ammonium nitrate drying agent apparatus for automatic change based on Internet of Things |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017506192A (en) * | 2014-02-20 | 2017-03-02 | ティーケー ホールディングス，インコーポレーテッド | Airbag inflator pad |
| DE102016213002B4 (en) * | 2016-07-15 | 2019-02-14 | Joyson Safety Systems Germany Gmbh | Gas generator for a gas bag module of a vehicle occupant restraint system and method for producing a gas generator |
| DE102019121477A1 (en) * | 2019-08-08 | 2021-02-11 | Zf Airbag Germany Gmbh | GAS GENERATOR AND USE OF A FLEXIBLE SUPPORT AS EARLY IGNITION DEVICE IN A GAS GENERATOR |
| DE102020104121A1 (en) | 2020-02-18 | 2021-08-19 | Zf Airbag Germany Gmbh | GAS GENERATOR |
| US11932194B2 (en) | 2020-12-11 | 2024-03-19 | Arc Technology Holding Limited | Airbag inflator with pressure relief and increased combustion efficiency |
| DE102021123691A1 (en) * | 2021-09-14 | 2023-03-16 | Zf Airbag Germany Gmbh | GAS GENERATOR FOR A VEHICLE SECURITY SYSTEM, GAS BAG MODULE AND VEHICLE SECURITY SYSTEM AND METHOD OF OPERATING AN GAS GENERATOR |
| DE102023102001A1 (en) | 2023-01-27 | 2024-08-01 | Zf Airbag Germany Gmbh | GAS GENERATOR |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030121578A1 (en) * | 2000-08-30 | 2003-07-03 | Parkinson David W. | Inflator device ignition of gas generant |
| CN1478062A (en) * | 2000-09-26 | 2004-02-25 | �����ɷ� | Apparatus for igniting gas generating material |
| CN1678879A (en) * | 2002-08-30 | 2005-10-05 | 日本化药株式会社 | Micro gas generator with automatic ignition function |
| US20060016362A1 (en) * | 2004-06-29 | 2006-01-26 | Quioc Eduardo L | Gas generating system |
| JP2007045405A (en) * | 1997-04-11 | 2007-02-22 | Livbag Snc | Method of gradually inflating airbag |
| US8273199B1 (en) * | 2008-11-28 | 2012-09-25 | Tk Holdings, Inc. | Gas generating compositions with auto-ignition function |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1331018A (en) * | 1919-09-29 | 1920-02-17 | Joseph O Luthy | Separator for secondary batteries |
| US4561675A (en) * | 1984-04-02 | 1985-12-31 | Morton Thiokol, Inc. | Auto ignition device |
| US4817828A (en) * | 1986-10-03 | 1989-04-04 | Trw Automotive Products Inc. | Inflatable restraint system |
| US4923212A (en) * | 1988-08-17 | 1990-05-08 | Talley Automotive Products, Inc. | Lightweight non-welded inflator unit for automobile airbags |
| US4907819A (en) * | 1988-09-16 | 1990-03-13 | Talley Automotive Products, Inc. | Lightweight non-welded gas generator with rolled spun lip |
| US5058921A (en) * | 1989-12-04 | 1991-10-22 | Talley Automotive Products, Inc. | Linear bilateral inflator module |
| US5286054A (en) * | 1989-12-04 | 1994-02-15 | Talley Automotive Products, Inc. | Aspirating/venting motor vehicle passenger airbag module |
| US5114179A (en) * | 1990-12-18 | 1992-05-19 | Trw Inc. | Safety apparatus |
| JPH04345554A (en) * | 1991-05-23 | 1992-12-01 | Nippon Koki Kk | Air bag inflating gas generating device |
| US7040653B1 (en) * | 2004-10-27 | 2006-05-09 | Automotive Technologies International, Inc. | Steering wheel assemblies for vehicles |
| US7481453B2 (en) * | 1991-07-09 | 2009-01-27 | Automotive Technologies International, Inc. | Inflator system |
| US5409259A (en) * | 1992-10-09 | 1995-04-25 | Morton International, Inc. | Gas generator for vehicle occupant restraint system |
| US5368329A (en) * | 1993-03-03 | 1994-11-29 | Morton International, Inc. | Dual stage inflator |
| US20060202452A1 (en) * | 1994-05-23 | 2006-09-14 | Automotive Technologies International, Inc. | Side curtain and multi-compartment vehicular airbags |
| US7338069B2 (en) * | 2004-04-02 | 2008-03-04 | Automotive Technologies International, Inc. | Airbags with internal valves |
| US20080147278A1 (en) * | 1994-05-23 | 2008-06-19 | Automotive Technologies International, Inc. | Knee Airbags Including Film |
| US5531475A (en) | 1994-10-21 | 1996-07-02 | Trw Vehicle Safety Systems Inc. | Air bag inflator and method of assembly |
| US7744122B2 (en) * | 1995-12-12 | 2010-06-29 | Automotive Technologies International, Inc. | Driver side aspirated airbags |
| GB9602266D0 (en) * | 1996-02-05 | 1996-04-03 | West Co | Composition |
| US6474684B1 (en) * | 1997-04-24 | 2002-11-05 | Talley Defense Systems, Inc. | Dual stage inflator |
| US6032979C1 (en) * | 1998-02-18 | 2001-10-16 | Autoliv Asp Inc | Adaptive output inflator |
| US6854395B2 (en) * | 2001-08-10 | 2005-02-15 | Daicel Chemical Industries, Ltd. | Inflator for an air bag |
| US20050115650A1 (en) * | 2003-12-02 | 2005-06-02 | Mendenhall Ivan V. | Foamed igniter for use in automotive airbag inflators |
| JP4514024B2 (en) * | 2004-02-09 | 2010-07-28 | 日本化薬株式会社 | Gunpowder molded body and gas generator having the same |
| JP2005313752A (en) * | 2004-04-28 | 2005-11-10 | Nippon Kayaku Co Ltd | Gas producer |
| US7950693B2 (en) * | 2008-05-20 | 2011-05-31 | Autoliv Asp, Inc. | Dual stage inflator |
| US20140134354A1 (en) * | 2011-06-08 | 2014-05-15 | Goodrich Corporation | Barrier layer for inflatable structures |
| US9073512B1 (en) * | 2012-07-23 | 2015-07-07 | Tk Holdings Inc. | Gas generating system with gas generant cushion |
| JP2017506192A (en) * | 2014-02-20 | 2017-03-02 | ティーケー ホールディングス，インコーポレーテッド | Airbag inflator pad |
-
2015
- 2015-02-20 JP JP2016552905A patent/JP2017506192A/en active Pending
- 2015-02-20 WO PCT/US2015/016971 patent/WO2015127317A1/en active Application Filing
- 2015-02-20 US US14/628,146 patent/US9676366B2/en active Active
- 2015-02-20 DE DE112015000911.6T patent/DE112015000911T5/en not_active Withdrawn
- 2015-02-20 CN CN201580007174.3A patent/CN106061799B/en active Active
-
2017
- 2017-06-12 US US15/619,965 patent/US10118584B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007045405A (en) * | 1997-04-11 | 2007-02-22 | Livbag Snc | Method of gradually inflating airbag |
| US20030121578A1 (en) * | 2000-08-30 | 2003-07-03 | Parkinson David W. | Inflator device ignition of gas generant |
| CN1478062A (en) * | 2000-09-26 | 2004-02-25 | �����ɷ� | Apparatus for igniting gas generating material |
| CN1678879A (en) * | 2002-08-30 | 2005-10-05 | 日本化药株式会社 | Micro gas generator with automatic ignition function |
| US20060016362A1 (en) * | 2004-06-29 | 2006-01-26 | Quioc Eduardo L | Gas generating system |
| US8273199B1 (en) * | 2008-11-28 | 2012-09-25 | Tk Holdings, Inc. | Gas generating compositions with auto-ignition function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554477A (en) * | 2017-10-26 | 2018-01-09 | 东北师范大学 | Safe automobile air bag ammonium nitrate drying agent apparatus for automatic change based on Internet of Things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106061799B (en) | 2020-03-03 |
| WO2015127317A1 (en) | 2015-08-27 |
| US20170274864A1 (en) | 2017-09-28 |
| JP2017506192A (en) | 2017-03-02 |
| DE112015000911T5 (en) | 2016-11-17 |
| US9676366B2 (en) | 2017-06-13 |
| US20150232057A1 (en) | 2015-08-20 |
| US10118584B2 (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106061799A (en) | Airbag inflator pad | |
| JP4215163B2 (en) | Air bag inflator | |
| JP3808100B2 (en) | Variable non-azide gas generator with multiple propellant chambers | |
| EP1658204B1 (en) | Pyrotechnique side impact inflator | |
| KR100589993B1 (en) | Dual stage pyrotechnic airbag inflator | |
| US5845933A (en) | Airbag inflator with consumable igniter tube | |
| JP2017506192A5 (en) | ||
| US8453575B2 (en) | Pyrotechnical method for dual-mode gas generation and related pyrotechnical generator | |
| JP6312863B2 (en) | Airbag deployment and inflation with electrically controlled variable force | |
| JP6324099B2 (en) | Gas generator | |
| JPWO2002083464A1 (en) | Gas generator | |
| WO2002032728A1 (en) | Hybrid inflator | |
| WO2002074587A1 (en) | Gas generator for air bag and air bag device | |
| US20060220362A1 (en) | Gas generator | |
| US11091118B2 (en) | Inflator | |
| US7712780B2 (en) | Gas generator with hybrid spring | |
| JP2008534268A (en) | Gas generator | |
| US9046327B2 (en) | Gas generator | |
| TW521052B (en) | Air bag gas generator and air bag device | |
| JP4643283B2 (en) | Gas generator for airbag | |
| US9556078B1 (en) | Gas generator | |
| JP2008179347A (en) | Gas generator with hybrid spring | |
| WO2001072560A1 (en) | Gas generator | |
| WO2005015117A1 (en) | Hybrid inflator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |